The environmental impact of irrigated agriculture on ground and surface water resources in Minnesota is of major concern. Better irrigation scheduling has the potential in addressing these complex agricultural environmental challenges we face in Minnesota.
Research Category: Soil Fertility
Over the last several years our regional atmospheric measurements and mesocosm experiments have revealed that reactive nitrogen losses associated with corn production are likely to increase as our climate continues to get warmer and wetter.
Potassium (K) can be a major yield limiting factor in corn production in Minnesota. Soils across Minnesota vary in their K holding capacity and their ability to supply K to the corn crop.
Minnesota has an interim goal of 20% reduction in nitrate-N load in Minnesota waters by 2025. One structural drainage practice that can immediately contribute to nitrate reduction is the woodchip bioreactor.
There is a growing interest in using cover crops for improving soil health and water quality. In cool, northern climates, however, adoption is low due to the short growing season.
This proposal is to fund “Advanced Nitrogen Smart – A Deep Dive Into the 4Rs.” This will be the second Advanced Nitrogen Smart program topic, and joins “Manure Management” as options for those that have already attended the base session.
The Nitrogen Smart program was conceived by leadership at the Minnesota Corn Growers and the Minnesota Agricultural Water Resources Center and developed into a program by University of Minnesota Extension.
With past support from the Minnesota Corn Research and Promotion Council, we have significantly advanced the development of the University of Minnesota Mesocosm Facility (http://biometeorology. umn.edu/). This facility is now allowing us to probe how climate and management decisions impact corn productivity and some of the critical environmental side effects of food production.